Bike Sizing

Why?
Retul
Sizing
Booking

No Demo Substitute

At Chelmer cycles we believe you can not truly size a bike without not only sitting on it, but riding it too.

Looking at numbers on a screen will never give you the feel of a bike, especially given the fact that most manufacturers quoted numbers are wrong!

This is why we offer bike fits and run demo bikes in all our popular models.

However, we do understand that many want to visit us armed with some basic sizing information. Therefore below we have listed a generic bike size guide.

It must be stressed that this guide is generic and does not relate to any brand we sell specifically.

To size a specific model please call in to discuss your unique requirements.
ladies bikes Chelmsford

Female Specific Bikes

Typically females have longer legs and shorter torsos for a given height, so ladies bikes need to be constructed completely differently to mens.

Narrower shoulders and smaller hands often require narrower bars and thinner grips. Generally shorter heights require shorter cranks and and where possible a lower Q-Factor too.

And then of course you have the wider different shaped saddle, which is paramount to most!

Below is our generic size guide to female specific bikes. Use this ONLY as a guide, then call in for a basic bike fit and to try a few bikes out.

MTB / Hybrid Size
4'10" - 5'2" 13-15in
5'2" - 5'6" 15-16in
5'6" - 5'10" 17-18in
5'10" -6'1" 19-20in
6'2" up 21in up
Road Size
4'10" - 5'1" 44-46cm
5'1" - 5'3" 47-49cm
5'3" - 5'5" 50-52cm
5'5" -5'8" 53-55cm
5'8" - 5'10" 55-57cm
5'10" - 6'0" 57-59cm
6'0" up 60cm up

Male Specific Bikes

For a given height most men have longer torsos and shorter legs than females, so male specific bikes are typically shorter in the seat tube but longer in length.

Wider shoulders and bigger hands often require wide bars and thicker grips. Generally taller riders require longer cranks and and where possible a higher Q-Factor too.

Below is our generic size guide to male specific bikes. Use this ONLY as a guide, then call in for a basic bike fit and to try a few bikes out.

MTB / Hybrid Size
5'0" - 5'4" 13-15in
5'4" - 5'8" 15-17in
5'8" - 5'11" 17-19in
5'11" -6'1" 19-20in
6'1" - 6'2" 20-21in
6'2" up 22in up
Road Size
5'0" - 5'3" 48-50cm
5'3" - 5'5" 50-52cm
5'5" - 5'6" 52-54cm
5'6" -5'8" 54-55cm
5'8" - 5'10" 55-57cm
5'10" - 6'0" 57-59cm
6'0" - 6'2" 59-61cm
6'2" up 61cm up

How Bikes Are Sized

Womans Specific Bikes And Accessories

Centre to top measure the precise distance from the very centre of the bottom bracket shell (centre of the bolt that holds the crank arm on) to the top of the seat tube. Detailed above in red.

Womans Specific Bikes And Accessories

Centre to centre measure the precise distance from the very centre of the bottom bracket shell (centre of the bolt that holds the crank arm on) to the centre of the junction with the top tube. Detailed above in green.

Bike frames are generally measured by one of the two methods detailed above.

Both measure a part of the frame called the "seat tube" (not to be confused with the seatpost), but one (red) measures a distance known as "centre to top", whilst the other (green) measure the "centre to centre" distance.

Typically this distance is measured in inches for mountain & hybrid bikes and centimetres for road bike. To confuse matters further many manufacturers convert these measurements to notional small, medium, large etc.

If the brand you're interested in uses notional sizing contact us to convert this to an actual in/cm size before using our size chart.

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